KR20040015644A - Sprayer and mixer of oxygen, hydrogen and liquid fuel for burner - Google Patents

Abstract

PURPOSE: A device for jetting and mixing oxygen, hydrogen, and liquid fuel is provided to improve combustion efficiency by properly mixing liquid fuel and gaseous fuel and introducing the mixed fuel into a combustion chamber. CONSTITUTION: A device for jetting and mixing oxygen, hydrogen, and liquid fuel is composed of a gaseous fuel supply tube(11) supplying oxygen and hydrogen generated by a gas generator, a liquid fuel supply tube(13) supplying the liquid fuel, a liquid fuel nozzle(131) installed at the end of the liquid fuel supply tube, a mixing chamber(15) mixing the liquid fuel and the gaseous fuel, a swirling unit(17) swirling the mixed fuel, and a combustion unit(19). The combustion unit introduces the mixed fuel passed through the swirling unit into a combustion chamber, and has a flame unit(191) and a combustion head(193).

Description

Sprayer and mixer of oxygen, hydrogen and liquid fuel for burner

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spray mixer which injects and mixes oxygen, hydrogen, and liquid fuel for a burner. By spraying the resultant oxygen and hydrogen by the appropriate ratio so that they can be introduced into the burner well mixed in the burner to enable efficient combustion.

In general, a burner spray mixer injects only liquid fuel into the burner, or vaporizes liquid fuel into the burner, injects only gaseous fuel into the burner, or mixes liquid fuel and air into the burner to combust. To lose.

In the case of a burner using such a conventional spray mixer, incomplete combustion is the biggest defect and causes environmental pollution. In other words, when initiating combustion for the first time, a large amount of pollutants such as soot is released into the atmosphere by incomplete combustion, which greatly affects the atmospheric environment, and incomplete combustion occurs even when the temperature is raised or lowered. Gas has become a serious pollutant to the environment.

In addition, in the case of injecting liquid fuel and air into the burner, nitrogen, argon, carbon dioxide, and dust, which are unnecessary for combustion, are mixed in the mixed air, resulting in low combustion efficiency and incomplete combustion. There has been a problem that causes double.

To improve these problems, to improve combustion efficiency and complete combustion, such as using more refined fuel, supplying compressed gas or liquefied air when fuel is supplied, or purifying the entrained air to be sucked in. Therefore, many studies have been made to reduce the emission of pollutants or to purify the exhaust gas, but its efficacy has not been greatly increased, and thus it is not effective.

On the other hand, the applicant (Baek Ok-rim) developed a gas generator that generates gaseous fuel by electrolyzing water in order to use oxygen and hydrogen required for combustion as gaseous fuel, and applied for a utility model registration application (Korean Utility Model Registration No. 0247546). However, in the case of providing two fuels, which are oxygen and hydrogen generated from the gas generator, and a liquid fuel, which is a hydrocarbon compound supplied separately from each other, the hydrogen is highly reactive, so it is not safely burned but exploded, causing safety problems. Since the need for the development of a spray mixer capable of injecting the mixed fuel by efficiently mixing the oxygen and hydrogen and liquid fuel is present, the present application has been made.

In order to solve the above problems, the present invention can stably electrolyze water to use clean oxygen and hydrogen generated therefrom as gaseous fuel, and liquid fuel supplied separately from such gaseous fuel is mixed smoothly with gaseous fuel. There is a technical problem to provide an injection mixer which prevents explosion from occurring and can be mixed at an appropriate ratio so that it can be efficiently burned.

1A is a side cross-sectional view of the spray mixer of the present invention.

1B is an enlarged view of a portion “A” of FIG. 1A.

1C is an enlarged view of a portion “B” of FIG. 1A.

Figure 2 is a detailed view of the present swirler.

Figure 3 schematically shows an embodiment in which the spray mixer of the present invention is applied to a burner together with a gas generator.

Explanation of symbols on the main parts of the drawings

1: spray mixer 11: gas fuel supply pipe

13: liquid fuel supply pipe 131: liquid fuel nozzle

133: liquid fuel pipe 135: vortex passing chamber

15: mixing chamber 151: mixed fuel filter

17, 17a: Vortex 19: Combustor

191: combustion port 2: liquid fuel supply unit

25: liquid fuel supply controller 27: liquid fuel control valve

3: gas generator 310: gas supply unit

311: water storage tank 313: gas separator

320: operating unit 329: gas control valve

In order to realize the above technical problem, the present invention provides a gas fuel supply pipe supplied with oxygen and hydrogen supplied from a gas generator, a liquid fuel supply pipe supplied with a liquid fuel, and a liquid fuel nozzle provided at an end of the liquid fuel supply pipe. The mixing chamber in which the fuels supplied from the supply pipes are mixed, and the mixed fuel is introduced into the combustion chamber while the injection mixer including the combustion port composed of a combustion port and a combustion head generating a combustion flame may be provided.

In the above, by adding a vortex having a plurality of spiral grooves in the circumference at the upper end of the liquid fuel nozzle and the end of the mixing chamber in contact with the combustor, the vortex is formed in the injected liquid fuel and the mixed fuel so that mixing of fuel In this case, the vortex may have a diameter smaller than that of the liquid fuel nozzle and the mixing chamber so that the incoming fuel passes through a spiral groove formed in the vortex to generate a rotational force. Do it.

The liquid fuel nozzle is formed so as to be screwed to the upper end of the mixing chamber, the tip portion of the liquid fuel nozzle to be protruded into the mixing chamber at the time of joining, the position of the end of the The distance from is to be less than 1/3 of the diameter of the mixing chamber.

The combustor is also formed to be coupled by the mixing chamber and screwed.

The vortex, the liquid fuel nozzle and the combustor are formed in a predetermined space, that is, the vortex passing chamber is formed so that the generated vortices can be smoothly escaped into the mixing chamber or the combustion chamber.

On the other hand, by further providing a mesh-type mixed fuel filter from the end of the mixing chamber in contact with the vortex provided in the mixing chamber to the center of the mixing chamber to filter out the mixed fuel having a large particle of the mixed fuel, only the mixed fuel of the fine particles It can be introduced into the combustor to increase combustion efficiency and reduce incomplete combustion.

In addition, the combustor has a shape of a general combustor, which is configured to form a semi-circular shape when viewed in cross section so that the flame generated from the combustion port can be sparked while spreading at an appropriate angle into the combustion chamber.

Hereinafter, with reference to the accompanying drawings, a configuration for an embodiment of the present invention will be described in detail.

1A is a side cross-sectional view of the spray mixer of the present invention, FIG. 1B is an enlarged view of the "A" portion of FIG. 1A, FIG. 1C is an enlarged view of the "B" portion of FIG. 1A, FIG. 3 is a view schematically showing an embodiment in which the spray mixer of the present invention is applied to a burner together with a gas generator.

The injection mixer 1 of the present invention protrudes into the interior of the injection mixer 1 while penetrating the upper end of the central portion of the gas fuel supply pipe 11 and the injection mixer 1 connected to one end of the injection mixer 1 from the outside of the left side. In order to supply external liquid fuel to the liquid fuel nozzle 131 which is screwed together, the liquid fuel nozzle 131 is provided with a liquid fuel supply pipe 13 at the top of the center of the injection mixer 1, and a liquid fuel supply pipe 13 ) And the liquid fuel nozzle 131 connecting the liquid fuel nozzle 131, the oxygen and hydrogen transferred to the gas fuel supply pipe 11 and the liquid fuel supply pipe 13 are transferred to the liquid. The mixing chamber 15 into which the particulate gaseous liquid fuel injected through the fuel nozzle 131 is mixed, and the combustion port 191 and the flame generating the flame as the mixed fuel flows into the combustion chamber 3. This combustion head spreads out at an appropriate angle to generate sparks. It consists of the combustor 19 which consists of 193.

In the upper end of the liquid fuel nozzle 131, a vortex vortex formed with a plurality of spiral grooves 171 on the circumference, preferably three to five spiral grooves 171, so as to generate a vortex by rotating by the passing force of the liquid flowing therein ( 17a) is configured to be smaller than the diameter of the liquid fuel nozzle 131, and is further provided, and the mixed fuel of the gaseous phase flowing into the end of the mixing chamber 15 in contact with the combustor 19 passes. The vortex machine 17 having a plurality of circumferences, preferably 3 to 5 helical grooves 171, formed on the circumference to have a diameter smaller than the inner diameter of the mixing chamber so as to generate vortices by rotation by force. This ensures a good mix of fuels.

When the vortexers 17 and 17a are additionally provided in the above, in the liquid fuel nozzle 131, inside the upper end and the combustor 19, the vortex passing chambers 135 and 195 having a predetermined space are formed on the left side thereof. Vortex fuels of the gas phase passing through the vortex devices 17 and 17a are collected so as to smoothly escape to the mixing chamber 15 or the combustion port 191.

On the left side of the vortexer 17, a mixed network filter 151 is further provided to prevent the mixed fuel having large particles from being mixed as a fine net up to the center of the mixing chamber 15. Incomplete combustion can be prevented in advance by allowing only fine particles to flow into the combustor 19 from the mixed fuel in which the liquid fuel and the gaseous fuel oxygen and hydrogen are mixed. The mixed fuel filter 151 has a mesh of 200 ~ 300㎛ and the appearance is in a cylindrical shape, it is preferable that the entire inside is made of a dense mesh.

The liquid fuel nozzle 131 is to be located in the center of the mixing chamber by screwing, but the tip of the end to protrude into the mixing chamber, the tip of the tip is the mixing chamber 15 Combine so as not to go down more than 1/3 of its diameter at the top of the. If the tip is lowered by more than one third, the flow of the mixed gas of oxygen and hydrogen from the left side is severely disturbed and the fuel is not mixed well.

The combustor 19 is also fastened to the end of the mixing chamber 15 by screwing, so that the vortexer 17 is interposed and coupled before the combustor 19 is fastened with the mixing chamber 15.

In order to smoothly mix the gaseous fuel composed of oxygen and hydrogen and the liquid fuel injected into the gas phase through the liquid fuel nozzle 131, the gas fuel supply pipe 11 is located on the left side of the liquid fuel nozzle 131. It is desirable to position. This is because when the gaseous fuel composed of one more particle pushes the liquid fuel injected into the gas phase rather than the liquid fuel, the mixing is better.

In an embodiment of the present invention, the liquid fuel nozzle 131 has a diameter of about 10 mm, the diameter of the fuel passage hole inside the nozzle 131 is 0.2 to 1.8 mm, and the diameter of the combustion port 191 is It is preferable that it is 0.8-2.0 mm, and the thickness of each vortex passing chamber 135, 195 shall be 0.5 mm. The pressure of the mixed gas of oxygen and hydrogen supplied from the gas fuel supply pipe 11 is 3 to 6 pascal, and the pressure of the liquid fuel supplied from the liquid fuel nozzle 131 is 10 pascal or more. It is preferable to set it as.

Oxygen and hydrogen, which are supplied gas fuels, naturally have a mixing ratio of 1: 2 (oxygen: water) during electrolysis, and the mixing ratio of gaseous fuel and liquid fuel composed of oxygen and hydrogen is 65 to 75%, liquid It is desirable to make the fuel 25 to 35%. This is because if the amount of gaseous fuel containing hydrogen is further increased, the explosive power increases, and if the combustion chamber of the existing burner does not endure the explosive power, and the damage or excessive explosive power occurs, the combustion chamber is damaged, resulting in human injury. This is because it is possible to operate the burner while maintaining the proper mixing ratio without using any of the existing burners without any difficulty, while maintaining high thermal efficiency and reducing the amount of pollutants while reducing the amount of liquid fuel used. This mixing ratio is the conclusion that Applicants concluded that after many years of experimentation, the mixing ratio can smoothly operate the burner without changing the structure of the existing burner.

On the other hand, when hydrogen and a hydrocarbon compound are mixed, a natural hydrocarbon is generated when the hydrocarbon compound, which is a liquid, is atomized, that is, in a gaseous phase and is not mixed but is mixed in a liquid phase. In order to prevent such natural explosion, the liquid fuel is injected through the liquid fuel nozzle 131, so that the liquid fuel is changed into a gaseous fuel having fine particles. It can be prevented.

Hereinafter will be described the operation of one embodiment of the spray mixer of the present invention configured as described above applied to the burner in addition to the gas generator.

First, the overall schematic configuration is shown in FIG. 3. The liquid fuel is supplied with a hydrocarbon-based compound such as diesel fuel in a liquid fuel storage tank 21, a filter 23, a liquid fuel supply controller 25, and a liquid fuel control valve. It is made by supplying from the liquid fuel supply part 2 consisting of (27); The generation of oxygen and hydrogen gas fuel is a gas supply unit 310, a gas control tank 321, a filter 323 consisting of a water storage tank 311, a gas separator 313, a gas moving tube 315 and a filter 317. ), An operation unit 320 composed of a gas output tank 325, a gas supply controller 327, and a gas control valve 329 is made in a gas generator 3 having two parts; In addition, the fuel, the gas fuel supply pipe 11, the liquid fuel supply pipe 13, the vortex 17a, the vortex passing chamber 135, the liquid fuel nozzle 131, mixing The injection mixer 1 is composed of a chamber 15, a mixed fuel filter 151, a vortexer 17, a vortex passing chamber 195, and a combustor 19.

Referring to the operation of the embodiment to which the present invention configured as described above is applied as follows.

First, oxygen and hydrogen are separated into oxygen and hydrogen 1: 2 while the water stored in the water storage tank 311 of the gas generator 3 passes through the gas separator 313, and the gaseous fuel thus separated is a gas pipe 315. Pass through the filter 317 and move to the gas output tank 325 through the gas control tank 321 and the filter 323, and passes through the gas supply controller 327 and the gas control valve 329 to the spray mixer Go to (1).

The liquid fuel, which is a hydrocarbon compound such as diesel, is stored in the liquid fuel storage tank 21 and then passed through a filter 23 to filter impurities such as residues, and a liquid fuel supply controller 25 and a liquid fuel control valve. Pass through (27) to the spray mixer (1).

The gaseous fuel, which is oxygen and hydrogen, moved as described above is mixed while the gaseous fuel supply pipe 11 is injected into the injection mixer 1 through the liquid fuel supply pipe 13.

The liquid fuel passes through the liquid fuel supply pipe 13 and the liquid fuel pipe 133 and passes through the vortex unit 17a in which four spiral grooves 171 are formed, so that the vortex is formed and dispersed well. While passing through the vortex passing chamber 135 and passing through the liquid fuel nozzle 131 having a small diameter, it is suddenly sprayed into the wide mixing chamber 15 to form very fine particles in the gas phase and sprayed into the mixing chamber 15. The liquid fuel in the gaseous phase injected by the nozzle 131 is mixed in the particulate state with oxygen and hydrogen injected from the left rear side. At this time, since the liquid fuel is in a gaseous state of very fine particles, natural explosion caused by mixing of liquid liquid fuel and hydrogen does not occur.

The gaseous fuel and the particulate gaseous liquid fuel mixed with each other pass through the mixed fuel filter 151. At this time, the mixed fuel having large particles is caught by the filter body 151, so that only the particulate mixed fuel is filtered. 151, the mixed fuel of the large particles caught in the mixed fuel filter is broken into fine particles by passing the mixed fuel passing through the filter body 151 or back to the mixing chamber 15 and the other mixed fuel and Crashing and broken into particulates. As the mixed fuel passes through the vortex unit 17 in which the four spiral grooves 171 are formed, the vortex is formed to be better mixed and exits to the combustion port 191 through the vortex passing chamber 195. The mixed fuel discharged in this way generates a flame by ignition. The flame can efficiently generate heat by generating a spark while forming an appropriate angle forward due to the shape of the semicircular combustion head 193.

At this time, the gas fuel composed of oxygen and hydrogen is controlled by the gas supply controller 327 and the gas control valve 329, the liquid fuel is controlled by the liquid fuel supply controller 25 and the liquid fuel control valve 27 The mixing ratio is adjusted according to the amount of flame and heat burned.

Since the above embodiments do not limit the scope of the present invention, the modified embodiments without departing from the technical spirit of the present invention from the viewpoint of those skilled in the art will not depart from the scope of the present invention.

As described above, when the injection mixer according to the present invention is used as a burner fuel injection mixer together with a gas generator, only oxygen and hydrogen without nitrogen, argon, carbon dioxide and dust, which are unnecessary for combustion, are used as the gas fuel. The complete combustion results in a remarkable effect of significantly reducing the amount of pollutants that cause air pollution in the exhaust gases emitted after combustion. Expensive equipment or high efficiency for purifying exhaust gases due to the reduction of pollutants. Since it emits low pollutants without equipment, it has the effect of reducing air pollution, and since the highly explosive hydrogen is used as gas fuel, the use of hydrocarbon compounds such as diesel is significantly reduced, which reduces the use of expensive liquid fuel. Effective, liquid fuel Since the (液相) is mixed with hydrogen in the gas phase (氣相), not that it is not the nature of hydrogen explosion can not occur safely use hydrogen as a fuel.

In addition, the dispersion or mixing of the fuel can be made better by the vortex constituting the additional configuration there is an additional effect that can be completely burned.

Claims (22)

In the injection mixer for generating a flame by mixing and injecting a liquid fuel, which is a hydrocarbon compound and a gaseous fuel composed of oxygen and hydrogen, the injection mixer (1) is a gas fuel supply pipe (11), liquid fuel supply pipe (13), a liquid fuel joint pipe 133, and a mixing pipe 15 made of a liquid fuel nozzle 131 for forming a gaseous liquid fuel, in which a gaseous fuel and a gaseous liquid fuel are mixed, An oxygen, hydrogen and liquid fuel injection mixer for a burner, characterized in that it consists of a combustor (19) which burns while the mixed fuel is injected. The vortex machine (17a) having a spiral groove (171) formed therein so as to rotate by the passing force of the liquid flowing into the upper end of the liquid fuel nozzle (131) to generate the vortex Oxygen, hydrogen and liquid fuel injection mixer for burners, characterized in that further provided a vortex passing chamber (135). The spiral groove 171 of claim 1, wherein the spiral groove 171 rotates by a force of the gaseous mixed fuel flowing into the end of the mixing chamber 15 in contact with the combustor 19 to generate vortices. And a vortex unit (17) having a) and a vortex passing chamber (195) through which the vortex passes, an oxygen, hydrogen, and liquid fuel injection mixer for a burner. 2. The burner oxygen, hydrogen, and liquid according to claim 1, further comprising a mixed fuel filter (151) for preventing the mixed fuel having large particles from passing through in the mixing chamber (15). Fuel injection mixer. The helical groove 171 of claim 2, wherein the spiral groove 171 is rotated by the passing force of the mixed fuel of the gaseous phase flowing into the end of the mixing chamber 15 in contact with the combustor 19 to generate the vortex. A burner oxygen, hydrogen, and liquid fuel injection mixer, characterized by further comprising the formed vortex unit 17 and a vortex passing chamber 195 through which the vortex passes. The burner oxygen, hydrogen, and liquid according to claim 2, further comprising a mixed fuel filter (151) for preventing the mixed fuel having large particles from passing through in the mixing chamber (15). Fuel injection mixer. 4. The burner oxygen, hydrogen, and liquid according to claim 3, further comprising a mixed fuel filter (151) for preventing the mixed fuel having large particles from passing through in the mixing chamber (15). Fuel injection mixer. The burner oxygen, hydrogen and liquid fuel injection mixer according to any one of claims 4, 6 and 7, wherein the mixed fuel filter 151 has a density of 200 to 300 µm. . The tip of any one of claims 1 to 7, wherein the tip of the end of the liquid fuel nozzle (131) is projected into the mixing chamber, the tip of the tip of the diameter at the top of the mixing chamber (15) Oxygen, hydrogen and liquid fuel injection mixers for burners, characterized in that they do not go down more than one third. The liquid fuel nozzle (131) according to any one of claims 1 to 7, wherein the gas fuel is mixed with the gas fuel supply pipe (11) so as to be mixed while pushing the gaseous liquid fuel from the rear. Oxygen, hydrogen and liquid fuel injection mixer for the burner, characterized in that located behind the. The method of claim 1, wherein the gaseous fuel oxygen and hydrogen is a mixing ratio of 1: 2 (oxygen: hydrogen), the mixing ratio of the gas fuel and liquid fuel consisting of oxygen and hydrogen is a gas fuel Burner oxygen, hydrogen and liquid fuel injection mixer, characterized in that 65 to 75%, liquid fuel 25 to 35%. The diameter of the liquid fuel nozzle 131 is about 10 mm, the diameter of the fuel passage hole inside the nozzle 131 is 0.2 to 1.8 mm, and the combustion Sphere 191 has a diameter of 0.8 ~ 2.0mm, the thickness of each of the vortex passing chamber (135, 195) is 0.5mm, oxygen, hydrogen and liquid fuel injection mixer for the burner. The method of claim 8, wherein the tip of the end of the liquid fuel nozzle 131 is projected into the mixing chamber, so that the tip of the tip does not go down more than 1/3 of the diameter from the top of the mixing chamber (15) Oxygen, hydrogen and liquid fuel injection mixer for the burner. The gas fuel supply pipe 11 is located behind the liquid fuel nozzle 131 so that the gas fuel can be mixed while pushing the gaseous liquid fuel from the rear. Oxygen, hydrogen and liquid fuel spray mixers for burners. 9. The method of claim 8, wherein the gaseous fuel oxygen and hydrogen is a mixing ratio of 1: 2 (oxygen: hydrogen), the mixing ratio of the gas fuel and the liquid fuel consisting of oxygen and hydrogen is 65 to 75% of the gas fuel, liquid fuel Oxygen, hydrogen and liquid fuel injection mixer for a burner, characterized in that 25 to 35%. The diameter of the liquid fuel nozzle 131 is about 10 mm, the diameter of the fuel passage hole inside the nozzle 131 is 0.2 to 1.8 mm, the diameter of the combustion port 191 is 0.8 ~ 2.0 mm, the oxygen, hydrogen and liquid fuel injection mixer for the burner, characterized in that the thickness of each of the vortex passing chamber (135, 195) is 0.5mm. 10. The method of claim 9, characterized in that the gas fuel supply pipe 11 is located behind the liquid fuel nozzle 131 so that the gas fuel can be mixed while pushing the gaseous liquid fuel from the rear. Oxygen, hydrogen and liquid fuel spray mixers for burners. 10. The method of claim 9, wherein the gaseous fuel oxygen and hydrogen is a mixing ratio of 1: 2 (oxygen: hydrogen), the mixing ratio of the gas fuel and liquid fuel consisting of oxygen and hydrogen is 65 to 75% of the gas fuel, liquid fuel Oxygen, hydrogen and liquid fuel injection mixer for a burner, characterized in that 25 to 35%. The diameter of the liquid fuel nozzle 131 is about 10 mm, the diameter of the fuel passage hole inside the nozzle 131 is 0.2 to 1.8 mm, the diameter of the combustion port 191 is 0.8 ~ 2.0 mm, the oxygen, hydrogen and liquid fuel injection mixer for the burner, characterized in that the thickness of each of the vortex passing chamber (135, 195) is 0.5mm. 11. The method of claim 10, wherein the gaseous fuel oxygen and hydrogen is a mixing ratio of 1: 2 (oxygen: hydrogen), the mixing ratio of the gas fuel and liquid fuel consisting of oxygen and hydrogen is 65 to 75% of the gas fuel, liquid fuel Oxygen, hydrogen and liquid fuel injection mixer for a burner, characterized in that 25 to 35%. The diameter of the liquid fuel nozzle 131 is about 10 mm, the diameter of the fuel passage hole inside the nozzle 131 is 0.2 to 1.8 mm, and the diameter of the combustion port 191 is 0.8. ~ 2.0 mm, the oxygen, hydrogen and liquid fuel injection mixer for the burner, characterized in that the thickness of each of the vortex passing chamber (135, 195) is 0.5mm. The diameter of the liquid fuel nozzle 131 is about 10 mm, the diameter of the fuel passage hole inside the nozzle 131 is 0.2 to 1.8 mm, and the diameter of the combustion port 191 is 0.8. ~ 2.0 mm, the oxygen, hydrogen and liquid fuel injection mixer for the burner, characterized in that the thickness of each of the vortex passing chamber (135, 195) is 0.5mm.